Changes in Habitual Physical Activity and Inactivity (START)

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The purpose of this study is to determine if individuals involved in exercise training change habitual activity and inactivity behavior outside of exercise training. Eligible participants were randomly assigned to one of four groups: control, exercise training, sedentary time reduction, or exercise training plus sedentary time reduction. It was hypothesized that participants in the exercise training group will compensate for exercise training by reducing free-living physical activity behavior and increasing sedentary time. Participant free-living behavior was monitored for one week at baseline, 3, 6, 9 and 12 weeks using an activPAL wearable monitor.

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Ages Eligible for Study:

20 Years to 60 Years (Adult)

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Yes

Criteria

Inclusion Criteria:

Eligible participants were those at increased risk of cardiovascular disease, based on meeting two of the following three criteria:

any condition for which a physician did not recommend exercise. Participants were excluded if they had gastric bypass or lap-band surgery within the last year, were taking medication for type II diabetes (e.g. metformin) or beta-blocker medication for high blood pressure.